Finding the Fourth Proportional to 2,667.90, 3,678.39 and 2,002.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.90 : 3,678.39 = 2,002.62 : x
2. Step 2: Convert to fraction form
   2,667.90/3,678.39 = 2,002.62/x
3. Step 3: Cross multiply
   2,667.90x = 3,678.39 × 2,002.62
4. Step 4: Simplify right side
   2,667.90x = 7,366,417.38
5. Step 5: Solve for x
   x = 7,366,417.38/2,667.90
6. Step 6: Final answer
   x = 2,761.13